/*
 * @Author: Du.M
 * @Date: 2021-06-23 16:20:26
 * @LastEditTime: 2021-08-04 14:28:22
 * @FilePath: \express_basics\app.js
 */
var express = require('express');
var createError = require('http-errors');
var path = require('path');
const cors = require('cors'); // 引入cors模块
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var app = express();

var router = require('./routes/index')



// view engine setup
app.set('views', path.join(__dirname, 'views'));
// app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname)));
app.use(cors()); // 注入cors模块解决跨域
router(app)

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.send('服务器异常')
});

module.exports = app;
